When a long process is running and the user wants to spend his time on something different, rather than your programm,
how does he or she know, whether the process has finished or is still active?
Maybe you have seen it before in other programs, like Firefox.
Graham Dawson wrote an example using a Windows-API call, where he demonstrates such progressbars in different kinds of manners, including the display of an error.
Here you find the example zipped, complete with all
source and a working EXE.
This page was made on 30.07.2021.
Here you find some more samples